公开(公告)号：US09696047B2

公开(公告)日：2017-07-04

申请号：US14534669

申请日：2014-11-06

Applicant: LG Electronics Inc.

Inventor： Cheonsu Park

IPC: G08C19/16 ,  F24F3/06 ,  F24F11/00 ,  G05B15/02

CPC classification number: F24F3/065 ,  F24F11/30 ,  F24F11/54 ,  F24F11/56 ,  F24F2110/00 ,  F24F2140/60 ,  G05B15/02

Abstract: An air conditioner that stores data through communication between a plurality of air conditioner devices and a method for operating an air conditioner are provided. Data regarding power consumption quantities of a plurality of outdoor devices may be accumulatively stored in a state in which an additional data collecting device or an additional storage device is not connected to the plurality of outdoor devices, and the data regarding power consumption quantities of the outdoor devices may be transmitted to a device further connected to the plurality of outdoor devices. Consequently, it is possible to utilize data regarding power consumption of the air conditioner, set a target value based on the power consumption of the air conditioner, easily determine a power consumption pattern, and easily take measures to save energy.

公开(公告)号：US10359223B2

公开(公告)日：2019-07-23

申请号：US15457439

申请日：2017-03-13

Applicant: LG ELECTRONICS INC.

Inventor： Cheonsu Park ,  Seunghyo Kim ,  Donggi Eom

IPC: F25B49/02 ,  H02P21/22 ,  H02P27/08 ,  H02P29/62 ,  F25B13/00

Abstract: A compressor driving apparatus and an air conditioner including the same, whereby the compressor driving apparatus includes a capacitor connected to a DC terminal, an inverter, including a plurality of three-phase switching devices, to convert DC power from the capacitor into AC power to drive a compressor motor, an output current detector to detect output current flowing in the motor, and a controller to output a switching control signal for controlling the inverter based on the output current, wherein the controller performs control such that some of the three-phase switching devices in the inverter are turned on or off in a compressor preheating mode.

公开(公告)号：US10243499B2

公开(公告)日：2019-03-26

申请号：US15253213

申请日：2016-08-31

Applicant: LG ELECTRONICS INC.

Inventor： Cheonsu Park

IPC: H02P27/08 ,  F25B49/02 ,  H02P29/62 ,  H02P23/02 ,  H02P8/36

Abstract: A motor driving apparatus and a home appliance including the same. The motor driving apparatus includes a temperature sensing unit to sense a compressor temperature, an inverter including a plurality of switching elements to convert a direct current (DC) voltage into an alternating current (AC) voltage and to supply AC voltage to a motor used to drive the compressor, and a controller to control the inverter. The controller performs control to apply motor preheating current for preheating of the motor during a first period before startup of the motor, and varies depending on the sensed temperature a time during which the motor preheating current is applied or a current application level. A reduction in power consumption during the preheating of the compressor is achieved.

公开(公告)号：US10120361B2

公开(公告)日：2018-11-06

申请号：US15261014

申请日：2016-09-09

Applicant: LG ELECTRONICS INC.

Inventor： Cheonsu Park

IPC: G05B9/02 ,  G05B19/042 ,  H02P27/08 ,  H02P6/14 ,  H02P31/00

Abstract: A motor driving apparatus including an inverter having a plurality of switching devices, wherein the inverter converts a direct current (DC) power into an alternating current (AC) power according to switching of the switching devices and supplies the AC power to a motor, and a controller to control the inverter, wherein the controller performs a control operation such that a switching frequency of the respective switching devices of the inverter remains constant in a first mode corresponding to a motor operation mode and performs a control operation to change the switching frequency of the respective switching devices of the inverter in a second mode corresponding to a sound output mode for fault diagnosis to output sound corresponding to the changed switching frequency.

公开(公告)号：US20170068233A1

公开(公告)日：2017-03-09

申请号：US15261014

申请日：2016-09-09

Applicant: LG ELECTRONICS INC.

Inventor： Cheonsu Park

IPC: G05B19/042 ,  H02P6/14 ,  H02P27/08

CPC classification number: G05B19/0428 ,  G05B2219/24024 ,  H02P6/14 ,  H02P27/08 ,  H02P31/00 ,  H02P2209/13

Abstract: A motor driving apparatus including an inverter having a plurality of switching devices, wherein the inverter converts a direct current (DC) power into an alternating current (AC) power according to switching of the switching devices and supplies the AC power to a motor, and a controller to control the inverter, wherein the controller performs a control operation such that a switching frequency of the respective switching devices of the inverter remains constant in a first mode corresponding to a motor operation mode and performs a control operation to change the switching frequency of the respective switching devices of the inverter in a second mode corresponding to a sound output mode for fault diagnosis to output sound corresponding to the changed switching frequency.

Abstract translation: 一种电动机驱动装置，包括具有多个开关装置的逆变器，其中，逆变器根据开关装置的切换将直流（DC）功率转换成交流（AC）电力，并将交流电力提供给电动机，并且 用于控制逆变器的控制器，其中所述控制器执行控制操作，使得所述逆变器的各个开关装置的开关频率在对应于电动机运行模式的第一模式中保持恒定，并且执行控制操作以改变所述逆变器的开关频率 对应于用于故障诊断的声音输出模式的第二模式的逆变器的各个开关装置输出对应于改变的开关频率的声音。